Pump for soap-dispensers.



Sx LIPPSTADT.

PUMP FOR SOAP DISPENSERS.

APPLICATION FILED AUG.4,1908.

- 928, 1 39, Patented July 13, 1909.

All 15 1 Y Y j E V {II Hammad OF NEW YORK, N. Y.

PUMP FDR SOAP-IDISPENSER$.

No. ezeueo.

Specification of Letters Patent."

Patented July 13, 1969.

Application filed August 4, 1908. Serial No. 446,930.

To all whom it may con-com.

llc it known that l, Sioiiimo Lirrsrrimr c' citizen oi ihe United States, rind resident of New York, in the county and tit-etc of New York, have invented certain new and useful lmprovcn'ieuts iii Pinups for Soep-Dispensers, of which the following is ii'specificution. This in vcntion relates to liquid dispensers, and particularly to those used for d1spensing liquid soap.

it on improvement upon the device covvation showing my dispensing attachment applied to a receptacle; and Fig. 2 is a cross section through the pump and attached parts.

In the drawings, 1. represents an. ordinary receptacle adopted to contain liquid soap or other material which is to be supplied. cover 2 or any suitable material is applied to the top of this receptacle and is provided with a filling opening 3. A. discharge pipe 4 is pivotiiliy mounted at 5 in the top 52, and communicating therewith there is a pipe 6, extending down into the receptacle to a point hour the bottom, l pon the lower end of the pipe ii there i; secured :i. coupling 7 which has an opening thcrcthrough in line with the opening in the pipe 6, and it will thus appear that there is a continuous opening from the discharge cod 8 ihrouuh the pipes 4 and'G and the coupling 7. The coupling 7 is provided with a luterzil pi'irt 9i and above this port provided with :i tapering valve sent 10, upon which the check valve 11 which is preferably mode in the shape of a ball as shown. Below the port 9 the coupling is provir d with Jarged opening 52 secting; the checlr valve which closes the outlet l'l in the plug 15" lhirrouiuliug the loteriil opening S) until secured lo the flange 16 b* screw threads is o closed 0' liuder 1'? the a outer end of which is preferably closed by a screw cap 18 having central opening 19. A

piston 2-0 'fits within this cylinder iind is pressed outwardly toward the cop 18'by a spring 21, and this piston has secured there to a piston rod 22 extending through the opening 19 and beyond the end of the cylin- It will be understood that the pipes 4 and 6 and attached parts are turned upon the pivot 5' by pressure on the arm 23 or by a pull on the hook 24, thus bringing the end of the piston rod 22 into contact with the wall of the receptacle and forcing the piston 20 to-the left against the tension of the spring, end thus forcing any liquid co11- tallied in the cylinder 17 through the passa e 9 into the coupling 7. When the liquid enters this coupling 7 thevalve 13 Will be closed and the pressure of the liquid will raise the valve 11 and thus the liquid Will pass up through pipe 6 and pipe 4 and will be discharged at 8. The amount of the liquid discharged is of course controlled by the size of the cylinder and by the distance the piston 20 is' forced into it. In order to prevent jamming and to provide a free movement of the valve 11 I have shown thelower end of the pipe 6 enlarged at 25. When the piston rod 22 from the wall the spring 21 forces the piston outwardly and thus the valve 11 is closed and liquid is drawn int-hrough the opening l l,'raising the valve 13 as it enters. It will be observed that by the use of this form of pump no air is permitted to'entcr the pumping mechanism or the pipes, and hence the along with the liquid soap Wlll not. occur.

- Having thus described the invention, What is claimed 13:

combinafion with a receptacle of on open ended pipe, extending into said receptacle ii closed cylinder extending laterally from said pipe ne r its end and comniunicatiiig with. its interior, a check valve upon each side of the point of communication. with said cylinder, a piston Working in said cylinder, and apiston rod extendiugbeyoud the end of said cylinder Within said receptacle.

2. In a device of the class described, the combination with a receptacle of a pipe extending into said receptacle a T-coupling secured tothe end of solid pipe having an opening therethrough in lineWit-h. saidipipe is allowed to recedg usual foaming due to the passage of air 1. In T device the class described, the

and having o lateral opening, check yaives in said coupling alcove and below said latcral opening, a closed cylinder surrounding said lateral opening, a piston in said cylin f e piston rod connected to said plston and extending beyond the end of said cylinder within said receptacle, and a spring within the cylinder tending to force the piston outwardly In a device of the class described, the combination-With a receptacle, of an openended pipe extending downwardly into said receptacle and movably mounted so that its end may be made to approach the wall of said receptacle, :1 closed cylinder extending laterally from said pipe near its lower end and communicating therewith, a check valve upon each side of said point of communication, 'a piston working in said cylinder, a piston rod connected to said piston and extending beyond the end of said cylinder toward the wall of-the receptacle, and a spring tending to force said piston outwardly. I

In testimony whereof I aflix my signature in presence of two witnesses.

- SIGMUND LIPPSTADT.

Witnesses:

HERMAN HERsT, Geo. R. Henri. 

